Kate Conger reports that news organizations have filed a FOIA lawsuit to obtain information on the still-secret purchase the FBI made to obtain information as to how to unlock Syed Farook’s phone.

USA Today, the AP, and Vice requested information about the exploit the FBI purchased to unlock the phone under the Freedom of Information Act. Their requests were denied by the FBI, leading to the lawsuit filed today.

The FOIA requests asked for “basic contracting information” on the exploit, which the suit refers to as one of the FBI’s “most publicly-discussed and controversial acquisitions.” FBI director James Comey suggested the exploit was purchased by the bureau for close to $1 million, but has not provided details on the exact purchase amount nor the seller.